Window screen



Sept. 24, 1929. K ONS I 1,729,348

WINDOW SCREEN Filed July 5, 1927 1' /7 .j 4 /lf 1. i;

I N V E N TOR wz/zzwm 71/. 1

M I/24m 1/64 ATTORNEY Patented Sept. 24, 1929 UNITED STATES WILLIAM M.KOONS, OF WICHITA, KANSAS WINDOW SCREEN Application filed July 5,

My invention relates to improvements in window screens. It relatesparticularly to the type of laterally extensible screens. which areadapted for insertion into a window frame above or below a sash.

My invention is an improvement on the extensible window screen for whichon September 16, 1924, I was granted a patent in the United States ofAmerica, having Numher 1,508,559.

The invention disclosed in the aforesaid patent comprises a screencarrying frame and an end member pivoted thereto by means of two links,each of which is pivoted to the frame and said end member on verticalaxes, whereby the end member is adapted to be swung to and from a closedposition at the end and in the vertical plane of the frame.

The arrangement is such that upon the insertion into or removal from thewindow frame, of the screen, the end member is swung inwardly and theadj acent'end of the frame is swung outwardly, thereby permitting suchinsertion or withdrawal.

One of the objects of my present invention is the novel means forinterlocking the end member with the frame, when the end member is inthe closed position, and thus holding the frame and end member fromvertical movement with respect to each other, independently of thelinks, and relieving the latter from strains which have a tendency toloosen the pivot devices connecting the links with the frame and endmember.

A further object of my invention is the provision of novel means forlimiting the opening movement of the end member to a position whichenables the easy engagement of the end member with or its disengagementfrom the frame. and also to relieve some of the strain upon the pivotaldevices when positioning the end member for removal.

A further object of my invention is to provide a construction which issimple, cheap, durable, not liable to get out of order, and which iseasily operable.

The novel features of my invention are hereinafter fully described andclaimed.

In the accompanying drawing, which illus- 1927. Serial No. 203,287.

trates the vention,

Fig. 1 is a perspective view of my improved window screen shown mountedin operative position in a window frame, which is partly broken away.

Fig. 2 is an enlarged top view of the same, partly broken away, thewindow frame being shown in horizontal section.

Fig. 8 is a view similar to Fig. 2, the window screen being shown in thecontracted position ready for insertion into or removal from the frame.

Fig. 4 is an enlarged section, on the line 44 of Fig. 5.

Fig. 5 is a reduced inside elevation of my improved window screen,partly broken away, the end member being shown in the closed positioninterlocked with the frame.

6 is an enlarged perspective view of the stop member which interlockswith the end member. a

Fig. 7 is a perspective view of the end member.

Similar reference characters designate H similar parts in the differentviews.

My improved window screen comprises a frame having a rectangular body 1,the opening through which is covered by netting or screen wire 2.

One end of the frame 1 is adapted for removable insertion between theusual stops 3 at one side of an ordinary window frame 4.

The other end of the frame 1 is beveled inwardly away from the adjacentside of the window frame 4. This beveled end of the frame 1 is adaptedto abut against a similarly beveled adjacent side edge 5 of a verticalend member 6, which is hinged to the frame 1 so as to be swung from aposition in vertical alignment therewith, from a closed position, shownin Figs. 1, 2 and 5, and in solid lines in Fig. 4, to an open position,shown in Fig. 3 and in dotted lines in Fig. 4.

For hinging the end member 6 to the frame 1, there may be provided anupper horizontal link 7 and a lower horizontal link 8, Fig. 5, which arerespectively mounted on the upper and lower ends of the end member 6 topreferred embodiment of my inwhich the links are respectively pivoted onvertical axes by screws 9.

The links 7 and 8 are respectively mounted in recesses 10 providedrespectively in the upper and lower edges of the frame 1, the uppersides of the links being preferably in the horizontal planes of theupper and lower edges of the frame 1, Fig. 5.

The links 7 and 8 are respectively slidably pivoted on vertical axes tothe upper and lower edges of the frame 1 by screws 11 which extendrespectively through slots 12 provided one in each link 7 and 8.

For swinging the end member (3 to and from the closed position, it mayhave fastened to it the arms of a U shaped handle 13.

The frame 1 at its beveled end is provided with a central portion whichprojects inwardly beyond the inner side of the body of the frame, andwhich projects outwardly beyond the beveled end of the body of theframe. This central projecting portion may comprise a block 1 1 fastenedto the inner side of the body of the frame 1 and having an oblique arm15, which may be mounted in an oblique groove 16 extending transverselyacross the beveled end of the frame 1, Fig. i.

The oblique arm 15 of the stop member 1st enters an oblique recess 16transversely across the beveled edge of the end member 6, when said endmember is swung to the closed position, shown in solid lines in Fig. 1.lVhen the end member is interlocked in the closed position with the bodyof the frame 1, by means of the stop block or member 14:, the end memberand the body 1 are held by said stop member from vertical movementrelatively to each other, and the links 7 and 8 are relieved fromexerting any prying strain on their pivot-a1 devices 9 and 11, due tothe weight of the window sash 17, which rests on the upper link 7 andthe upper edge of the body 1, when the parts are in the operativeposition, shown in Fig. 1.

\Vhen the end member 6 is swung to the open position, shown in Fig. 3and in dotted lines in Fig. l, it will strike the outer beveled side ofthe stop member 14 which projects beyond the inner side ofthe body 1,thus limiting the opening movement of the end member, and holding it inproper position for easy insertion between the window stops 18 at theadjacent side of the window frame 4:.

The stop member or block 14 thus effects the double function or duty asa stop for the end member and as a means for interlocking the end memberwith the body 1 to prevent relative vertical movement between the two.

As additional means for limiting the opening movement of the end member6, there may be fastened to the inner side of the body 1, two stopblocks 19, which. are respectively adjacent to the upper and lower edgesof the body 1 and each of which has an outer beveled side 20 adapted tobe struck by the beveled edge 5 of the end member 6.

For releasably fastening the end member 6 in the closed position, theremay be provided a button 521, Figs. 1 and 5, which is pivoted to theinner side of the body 1, and which is adapted to be swung to and from aposition in which it extends over the inner side of the end member 6.

To insert the window screen into the window frame 4, the end member 6 isswung by means of the handle 18 to the open position, shown-in Fig. 3,and the distant end of the body 1 is inserted between the stops 3. Thehandle 13 is then pulled inwardly and to the left, as viewed in Fig. 3,upon which the member 6 will enter between the stops 18 and the adjacentend of the body 1 will be drawn inwardly until it alines with the endmember 6, as shown in Fig. 2.

In the closing operation, the arm 15 will enter the recess or groove 16'of the end member, to which the arm is pivoted, thereby interlocking theend member 6 and the body 1 so as to hold them from relative verticalmovement. The button 21 is then turned to the locking position, shown inFigs. 1 and 5, thereby retaining the parts in their operative positions.The window sash 17 may then be lowered so as to rest upon the upper edgeof the body 1.

To remove the window screen from the window frame, the operation justdescribed, is reversed.

By providing the end member 6 and the adj acent end of the body 1 withthe beveled meeting surfaces described, and by mounting the end member 6on vertical axes, the screen may be removed from the frame even when thesash has become stuck therein and can not be raised. This may beeffected by removing the screen outwardly from the window frame. Thebeveled surfaces of the meeting portions of the end member and the body1 eliminate any open crack between the two.

By having the beveled meeting surfaces of the end member 6 and the body1 extending inwardly and away from the adjacent side of the frame 4, asshown, the screen may be inserted or removed readily from within theroom, while this construction makes it extremely difiicult for anintruder on the outside to remove the screen, when the latter and thewindow sash 17 are both locked.

I do not limit my invention to the structure shown and described, asmodifications, within the scope of the appended claims, may be madewithout departing from the spirit of my invention.

What I claim is 1. In a window screen, two members comprising anettingcarrying frame and an end member hinged thereto so as to be swung to andfrom a closed position in alinement with said frame, said members havingrespectively beveled meeting edges, one of which has in it a transversegroove, the other beveled edge having on it a projecting portion, which,in the closed position of said end member, enters said groove and holdssaid members'from vertical movement relatively to each other.

2. In a window screen, a netting carrying frame, and an end memberhinged thereto so as to be swung to and from a closed position inalinement with said frame, said members having respectively beveledmeeting edges, the beveled edge of the end member having in it atransverse groove, and the beveled edge of the frame having on it aprojecting portion, which, in the closed posi tion of said end member,enters said groove and holds said members from vertical movementrelatively to each other.

3. In a window screen, a netting carrying frame, and an end memberhinged thereto so as to be swung to and from a closed position invertical alinement with the frame, said members having respectivelybeveled meeting edges, the meeting edge of the end member having in it atransverse groove, said frame having a portion projecting from itsmeeting edge and which fits in said groove when the end member is in theclosed position, said frame having a portion projecting from one side inthe path of said end member and arranged to engage said end member andlimit the opening movement thereof.

4. In a window screen, a netting carrying frame having at one side aprojecting portion, and an end member hinged thereto so as to be swungto and from a closed position in vertical alinement with said frame,said frame and said end member having respectively beveled meetingedges, the meeting edge of the end member being engaged by saidprojecting portion and thus having its opening movement limited thereby.

In testimony whereof I have signed my name to this specification.

WILLIAM M. KOONS.

